Common side effects of neuroleptics include , which includes slowed motor activity, monotonous speech, and an expressionless face, and , an agitation that causes people to pace and be unable to sit still.

akinesia; akathesis

Explanation:

Common side effects of neuroleptics include akinesia , which includes slowed motor activity, monotonous speech, and an expressionless face, and akathesis , an agitation that causes people to pace and be unable to sit still..

When one had lost power over voluntary movement it is called Akinesia

Akathisia is a movement disorder marked by a feeling of inner restlessness and inability to stay still. Usually, the legs are most prominently affected.

answer; the parasympathetic nervous system;